DAVID J. KRIENS JR.

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Des Moines, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Snap fitting for plumbing
- Patent number 11,879,583
- Issue date Jan 23, 2024
- David J. Kriens
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Snap fitting for plumbing
- Patent number 11,313,506
- Issue date Apr 26, 2022
- David J. Kriens
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Snap fitting for plumbing
- Patent number 9,638,368
- Issue date May 2, 2017
- David J. Kriens
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Snap Fitting For Plumbing
- Publication number 20220213997
- Publication date Jul 7, 2022
- David J. Kriens
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Snap Fitting For Plumbing
- Publication number 20210222811
- Publication date Jul 22, 2021
- David J. Kriens
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Snap Fitting For Plumbing
- Publication number 20170227156
- Publication date Aug 10, 2017
- David J. Kriens
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
SNAP FITTING FOR PLUMBING
- Publication number 20150184786
- Publication date Jul 2, 2015
- DAVID J. KRIENS
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SNAP FITTING FOR PLUMBING
- Publication number 20130056104
- Publication date Mar 7, 2013
- DAVID J. KRIENS
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...